Is Fortran unable to do the addition between 865398.78 and -865398.78? Why the answer is -0.03?

by

The number 865398.78 is represented in single precision in your code. Single precision can handle about 7 significant digits, while your number has 8. You can make it double precision by writing

x=x+865398.78_8

More Related Contents:

  1. Is There a Better Double-Precision Assignment in Fortran 90?
  2. Where to put `implicit none` in Fortran
  3. What are the ways to pass a set of variable values through the subroutine to a function without common block?
  4. gfortran does not allow character arrays with varying component lengths
  5. What does “real*8” mean?
  6. What is the purpose of result variables in Fortran?
  7. Fortran IF statement with numbers/labels rather than another statement
  8. Function in fortran, passing array in, receiving array out
  9. Fortran intent(inout) versus omitting intent
  10. Fortran array cannot be returned in function: not a DUMMY variable
  11. Using do loop in a Fortran 90 program to read different number of lines for n frames?
  12. Fortran SAVE statement
  13. Fortran running error
  14. Why Segmentation fault is happening in this openmp code?
  15. Unexpected “padding” in a Fortran unformatted file
  16. What is an undefined reference/unresolved external symbol error and how do I fix it in Fortran?
  17. How to initialize two-dimensional arrays in Fortran
  18. Format string for output dependent on a variable
  19. How to pass allocatable arrays to subroutines in Fortran
  20. Sending 2D arrays in Fortran with MPI_Gather
  21. Print to standard output from a function defined in an Fortran module
  22. Why is this a function declared inside the module and then used somewhere else in the same module not seen by the linker?
  23. Does Fortran have undefined behavior?
  24. Reading data file in Fortran with known number of lines but unknown number of entries in each line
  25. What flags do you set for your GFORTRAN debugger/compiler to catch faulty code?
  26. Providing an argument that has not the TARGET attribute to a procedure with a dummy argument that has the TARGET attribute
  27. Difference between intent(out) and intent(inout)
  28. How to increase array size on-the-fly in Fortran?
  29. Passing size as argument VS assuming shape in Fortran procedures
  30. MPI_Gather gives seg fault in the most basic code

Leave a Comment